1350897-96-9Relevant academic research and scientific papers
Sulfonate-tagged 1,4-diazabutadiene (DADS) ligands and their noble-metal complexes - Synthesis, characterization and immobilization in ionic liquids
Oelkers, Benjamin,Sundermeyer, Joerg
, p. 12727 - 12741 (2011)
A series of sulfonate-tagged 1,4-diazabutadiene (DADS) ligands was prepared as salts with typical ionic liquid (IL) cations ([EMIM] +, [BMIM]+, [BMMIM]+, Bu4N +, Bu3PMe+, [Gua-4,4-4,4-4,1]+). Complexation behaviour of the ligands was investigated by preparing complexes of the types [BMMIM]2[MCl2(DADS)] (M = Pd, Pt), [BMMIM][Rh(COD)(DADS)] and [BMMIM]2[Mo(CO) 4(DADS)]. Using UV-Vis spectroscopy, the latter sulfonate-tagged chromophore was shown to be well soluble in the sulfonate IL [BMIM]OTf and completely insoluble in toluene, resulting in perfect immobilization. The crystal structures of [HNEt3]2[2,6- Me2-Me-DADS], [BMIM]2[2,6-Me 2-Me-DADS], [BMMIM]2[2,4,6-Me 3-Me-DADS], [BMMIM]2[2,6-iPr 2-Me-DADS] and [HNEt3]2[PdCl 2(2,6-Me2-Me-DADS)] were determined. Regarding the diimine fragment, they show geometries similar to the respective non-sulfonated parent compounds.
